How does the bad breath disappear?
The force to close the mouth will be strengthened through lip muscle training. As a result, one will not sleep with the mouth opened and change to breathe through the nose. Different from mouth-breathing, inflammation of the mucous membrane will not occur in the case of nose-breathing when the inspired air is warmed by the moisture and passed through the upper respiratory tract inside the nasal membrane. Mouth-breathing during sleep will result in chronic inflammations. Bacteria will deposit and breed in its surrounding, giving out putrid gas. This is the cause for bad breath. You can say that bad breath which is produced even after brushing teeth thoroughly mainly comes from the throat.
